Global Patent Index - EP 1020415 A1

EP 1020415 A1 2000-07-19 - Process for immobilising and solidifying dusty to coarse-grained contaminated noxious waste

Title (en)

Process for immobilising and solidifying dusty to coarse-grained contaminated noxious waste

Title (de)

Verfahren zum Immobilisieren und/oder Verfestigen schadstoffhaltiger, kontaminierter staubförmiger bis grobkörniger Anfallstoffe

Title (fr)

Procédé pour l'immobilisation et la solidification de déchets nocifs contaminés poussiéreux ou à gros grains

Publication

EP 1020415 A1 (DE)

Application

EP 99117708 A

Priority

  • DE 19844087 A
  • DE 19851256 A

Abstract (en)

Immobilizing and/or compacting waste material comprises forming an aqueous suspension consisting of 50-200 g ground clay in 1 liter water, mixing with the waste material and directly adding an inorganic hydraulic binder.

Abstract (de)

Die Erfindung betrifft ein Verfahren zum Immobilisieren und/oder Verfestigen schadstoffhaltiger, kontaminierter staubförmiger bis grobkörniger Anfallstoffe, Erdstoffe oder dergleichen Materialien unter Verwendung von Tonmineralien und hydraulischen Bindemitteln. Erfindungsgemäß wird zunächst in einem intensiven Mischprozeß eine wässrige Suspension enthaltend Tonmehl gebildet. Die Anfallstoffe werden im Anschluß mit der Suspension vermischt. Während oder vor dem Mischprozeß wird der Mischung oder einer Komponente ein anorganisches, hydraulisches Bindemittel zum Verfestigen zugegeben. Durch den intensiven Mischprozeß bei der Suspensionsherstellung und den damit einhergehenden Energieeintrag werden die Schichtzwischenräume der Tonmineralien der Suspension vergrößert, so daß sich Schadstoffe hier anlagern können bzw. eingebunden werden.

IPC 1-7 (main, further and additional classification)

C04B 28/02; C04B 18/04

IPC 8 full level (invention and additional information)

A61L 27/18 (2006.01); A61L 27/44 (2006.01); A61L 31/06 (2006.01); A61L 31/12 (2006.01); C04B 28/02 (2006.01); C04B 40/00 (2006.01)

CPC (invention and additional information)

C04B 40/0028 (2013.01); A61L 27/18 (2013.01); A61L 27/446 (2013.01); A61L 31/06 (2013.01); A61L 31/128 (2013.01); C04B 28/02 (2013.01); Y02W 30/91 (2015.05); Y02W 30/92 (2015.05); Y02W 30/95 (2015.05)

Combination set (CPC)

  1. C04B 28/02 + C04B 14/104 + C04B 14/361 + C04B 18/0463 + C04B 18/08 + C04B 18/167 + C04B 40/0028 + C04B 2103/12 + C04B 2103/22
  2. A61L 27/18 + C08L 67/04
  3. A61L 27/446 + C08L 67/04
  4. A61L 31/06 + C08L 67/04
  5. A61L 31/128 + C08L 67/04

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1020415 A1 20000719; EP 1020415 B1 20030604; AT 242185 T 20030615

INPADOC legal status


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2002-11-27 [RTI1] TITLE (CORRECTION)

- Free text: PROCESS FOR SOLIDIFYING DUSTY TO COARSE-GRAINED CONTAMINATED NOXIOUS WASTE

2002-10-30 [RTI1] TITLE (CORRECTION)

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